20106401 has 8 divisors (see below), whose sum is σ = 23089344. Its totient is φ = 17151120.

The previous prime is 20106397. The next prime is 20106403. The reversal of 20106401 is 10460102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20106401 - 2² = 20106397 is a prime.

It is a super-2 number, since 2×20106401² = 808534722345602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20106403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5330 + ... + 8283.

It is an arithmetic number, because the mean of its divisors is an integer number (2886168).

Almost surely, 2^20106401 is an apocalyptic number.

It is an amenable number.

20106401 is a deficient number, since it is larger than the sum of its proper divisors (2982943).

20106401 is a wasteful number, since it uses less digits than its factorization.

20106401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13831.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20106401 is about 4484.0161685703. The cubic root of 20106401 is about 271.9222717996.

Adding to 20106401 its reverse (10460102), we get a palindrome (30566503).

The spelling of 20106401 in words is "twenty million, one hundred six thousand, four hundred one".